- Definitions|1
- Thesaurus|483
- Abbreviations|0
189 entries under adjective topic. ×
| unbending(strong, hard, tough, firm) | |
| ungiving(firm, unyielding) | |
| unrelenting(strong, hard, tough, severe) | |
| X-rated(offensive, dirty, coarse, vulgar) | |
| affectionate(close, correct, firm, honest) | |
| allegiant(close, correct, firm, honest) | |
| astringent(strong, hard, tough, severe) | |
| attached(close, correct, firm, honest) | |
| austere(strong, hard, tough, severe) | |
| authoritarian(strong, hard, tough, severe) | |
| behind one(expression, close, correct, firm) | |
| bitter(strong, hard, tough, severe) | |
| bullheaded(strong, hard, tough, severe) | |
| by the book(expression, idiom, strong, hard) | |
| ceaseless | |
| chronic | |
| circumspect(close, correct, firm, honest) | |
| confiding(close, correct, firm, honest) | |
| confirmed | |
| conscientious(close, correct, firm, honest) |
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| APA | Smart Define. (2016). hard-core thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hard-core/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard-core thesaurus" https://smartdefine.org/hard-core/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, hard-core thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hard-core/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-core thesaurus" 28 March 2016. Web. 26 September 2026. <https://smartdefine.org/hard-core/thesaurus/synonyms> |